=> 0x7f9276598037 : cmp $0xfffffffffffff000,%rax 0x7f927659803d : ja 0x7f927659805d 0x7f927659803f : repz retq 0x7f9276598041 : nopl 0x0(%rax) 0x7f9276598048 : test %ecx,%ecx 0x7f927659804a : jg 0x7f9276598027 0x7f927659804c : mov %ecx,%eax 0x7f927659804e : neg %eax 0x7f9276598050 : and $0x7fffffff,%ecx 0x7f9276598056 : mov %esi,%ecx 0x7f9276598058 : cmovne %eax,%ecx 0x7f927659805b : jmp 0x7f9276598027 0x7f927659805d : mov 0x389ddc(%rip),%rdx # 0x7f9276921e40 0x7f9276598064 : neg %eax 0x7f9276598066 : mov %eax,%fs:(%rdx) 0x7f9276598069 : or $0xffffffffffffffff,%rax